l8 Pearl and FÄrtKtt. 



A random sample of white starchy Fg corn would include 



kernels of the following gametic constitutions in the proportions 

 indicated : 



1 ySF-ySF i ySf-ySf 



2 ySF-ySf 2 ySf-ysF 

 2 ySF-ysF 2 ySf-ysf 

 2 ySF-ysf 



A random sample of yellow sweet Fg corn would include kernels 

 of the following gametic constitutions in the proportions indicated: 



1 YsF-YsF I Ysf.Ysf 



2 YsF-Ysf 2 Ysf-ysF 

 2 YsF-ysF 2 Ysf-ysf 

 2 YsF-ysf 



Finally a random sample of white sweet corn would inchide 

 kernels of the following gametic constitutions in the proportions 

 indicated : 



I ysF-ysF + 2 ysF-ysf + i ysf«ysf 



Summarizing these formulae it appears that there are in every 36 

 kernels of the yellow starchy F., corn: 



9 FF kernels, of which 3 are SS and 6 are Ss 



9 Ö ,, „ „ 3 ., SS „ 6 „ Ss 



18 FJ „ „ „ 6 „ SS „ 12 „ Ss 



In every 12 kernels of the white starchy Fo corn there are: 



3 FF kernels, of which i is SS and 2 are Ss 



3 Ö „ „ „ I „ SS „ 2 „ Ss 



6 Ft „ „ „ 2 are SS „ 4 „ Ss 



In every 12 kernels of the yellow sweet Fo corn there are: 

 3 FF kernels | 



3 ,, ? all of which are ss 



6 Ff „ J 



In every 4 kernels of white sweet F2 corn there are: 



1 FF kernel | 



iff „ \ of which all are ss 



2 Ff kernels J 



Now the chemical analyses in hand inform us at once as to the 

 crude fat content of kernels of certain gametic constitutions. Thus 

 we know (using throughout this discussion figures on a water free 

 basis, taken from Table II) that: 



